Found: July 10, 2016
This fountain is at the eastern city limits of Olathe in the median of 135th Street, just west of Pflumm Road. It is a large combination waterfall/fountain/planter. On Google Maps, I measure it at about 120 feet in total length. Due to fences on the south side of the road and trees on the north side of the road, it is very difficult to get the entire length of the fountain in one shot. I tried though.
The middle section is a double-sided waterfall. The side facing east has a sign that says “City of Olathe” to greet traffic entering Olathe city limits. Each side of the waterfall has its own pool. The two waterfall sides are identical, except there is no sign on the west-facing side. The sides facing the street have a design on it that, to me, resembles a fountain or, maybe, a sunrise.
The east part is the fountain part. It is a long pool sectioned off into 10 separate, but joined, pools. Every other pool has a small bubbler in it.
The west part is a large planter that is home to five good-sized trees and the trees are roughly spaced out to resemble the bubbler spacing on the east end.
There are businesses nearby on the north side of the street where you can park and walk to the fountain. You will have to go west on 135th to get to the streets that give access to the fountain. Be careful though. 135th Street can be fairly busy.
I mentioned 135th Street in the post title because there is also a City of Olathe fountain in the median of 119th Street east of Interstate 35 and I wanted to be sure to differentiate between the two.